Makes views be initially hidden

examples/wm_flow/wm/frame_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "examples/wm_flow/wm/frame_controller.h"
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/services/public/cpp/view_manager/view.h"
@@ skipping 90 matching lines @@
     mojo::View** app_view,
     mojo::WindowManagerApp* window_manager_app)
     : view_(view),
       app_view_(mojo::View::Create(view->view_manager())),
       frame_view_(new views::View),
       frame_view_layout_manager_(new LayoutManager(this)),
       widget_(new views::Widget),
       maximized_(false),
       window_manager_app_(window_manager_app) {
   view_->AddChild(app_view_);
+  app_view_->SetVisible(true);
   view_->AddObserver(this);
   *app_view = app_view_;
   frame_view_->set_background(
       views::Background::CreateSolidBackground(SK_ColorBLUE));
   frame_view_->SetLayoutManager(frame_view_layout_manager_);
   frame_event_handler_.reset(new FrameEventHandler(this));
   frame_view_->AddPreTargetHandler(frame_event_handler_.get());
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   params.native_widget =
@@ skipping 26 matching lines @@
   window_manager_app_->focus_controller()->ActivateView(view_);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // FrameController, mojo::ViewObserver implementation:
 
 void FrameController::OnViewDestroyed(mojo::View* view) {
   view_->RemoveObserver(this);
   delete this;
 }